[QUOTE=Formulajones;6468287]
Quote:
Originally Posted by TRADERMIKE 2012
I'm not one to be so quick to come to that conclusion. Like Cliff mentioned early on, and I agreed with, that knocking noise is most likely piston slap. It's not your flexplate, and everything else you chased didn't fix it. Piston slap does exactly what you describe, no load on the engine, sitting idling or revving, and making a knocking noise. As I said earlier, a video sure would help the other forum members.
Probably not what you want to hear but if the more likely cause is piston slap (pistons being in backwards doesn't help) that engine is going to need bored and new pistons installed to make it right. That means a full on rebuild is in your future if you want that thing straightened out. I hope you come to a satisfactory outcome but in the end, my thought is do it right once and rebuild it.
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I won't argue with the point that someday this Engine will have to be rebuilt correctly, but now isn't the time. The one and only time that I drove a Vehicle with a clear rod knock, I can attest to what it sounds like. Also, the sound that is made by the Engine when Tuning, both by test driving and driveway tests. While turning the dist., pinging and the rest of those sounds too.
I have recently lost the sound or the Harmonic balancer with the replacement of a new complete kit, takes that scenario out of the loop. Now remains the last, I hope noise in the equation, possibly the Flex plate. I have already left a description of the next step from Butler Performance; I hope all of you have read that. So, once the parts come in, we will install them and it is my prayer that the Flexplate was the issue. If not and that recent noise is still there then I will make a video using my Android Phone for the forum, after all a picture is worth a thousand words, in this case an audio clip. The Windage Tray is the next possible part that could send a sound frequency through the Engine. As of now the latest vibration occurs between 1000-2000 RPM @ rest and driving through it between 1000 -2000 Rpm the sound disappears. When resting and revving the Motor, this latest vibration comes and goes at low RPM.